lenguajes_de_programacion=["c","c++","c#","ruby","java","kotlin","scala","perl","python"]

#Codigo 1
for lenguaje_de_programacion in lenguajes_de_programacion:
    print(lenguaje_de_programacion)

#Codigo 2
iterador_ldp=iter(lenguajes_de_programacion)
for ldp in iterador_ldp:
    print(ldp)

 item = {};
 item["Elem1"] = cosa1;
 item["Elem2"] = cosa2;

json.push(item);

COLOQUIAL•MÉXICO
Actividad política, principalmente la que implica deshonestidad o intrigas para favorecer los intereses de un grupo.

SELECT * FROM `table`
ORDER BY `fecha` DESC
LIMIT 1

SELECT
	DEU.DEU_COD_CONTRATO AS CONTRATO,
	DEU.DEU_FECHA AS FECHA,
	DEU.DEU_MONTO AS MONTO,
	DEU.DEU_FECHA_VENCE AS VENCIMIENTO,
	DEU.DEU_FECHA_CANC AS CANCELADO
FROM PRO_CONTRATOS_DEUDAS AS DEU
INNER JOIN PRO_CONTRATOS AS CON
ON DEU.DEU_COD_CONTRATO=CON.CTT_CODIGO
WHERE
	CON.CTT_ANULADO=0 -- Falta la fecha

SELECT
	DEU.DEU_COD_CONTRATO AS CONTRATO,
	DEU.DEU_FECHA AS FECHA,
	DEU.DEU_MONTO AS MONTO,
	DEU.DEU_FECHA_VENCE AS VENCIMIENTO,
	DEU.DEU_FECHA_CANC AS CANCELADO
FROM PRO_CONTRATOS_DEUDAS AS DEU
INNER JOIN PRO_CONTRATOS AS CON
ON DEU.DEU_COD_CONTRATO=CON.CTT_CODIGO
WHERE
	CON.CTT_ANULADO=0;

:59316583 Prueba esto:

    SELECT DEU.DEU_COD_CONTRATO AS CONTRATO,
           DEU.DEU_FECHA AS FECHA,
           DEU.DEU_MONTO AS MONTO,
           DEU.DEU_FECHA_VENCE AS VENCIMIENTO,
           DEU.DEU_FECHA_CANC AS CANCELADO
           FROM PRO_CONTRATOS_DEUDAS AS DEU
           INNER JOIN (SELECT DEU1.DEU_COD_CONTRATO,
                              MAX(DEU1.DEU_FECHA) AS DEU_FECHA
                              FROM PRO_CONTRATOS_DEUDAS AS DEU1
                              INNER JOIN PRO_CONTRATOS AS CON

SELECT DEU.DEU_COD_CONTRATO AS CONTRATO,
       DEU.DEU_FECHA AS FECHA,
       DEU.DEU_MONTO AS MONTO,
       DEU.DEU_FECHA_VENCE AS VENCIMIENTO,
	     DEU.DEU_FECHA_CANC AS CANCELADO
       FROM PRO_CONTRATOS_DEUDAS AS DEU
       INNER JOIN (SELECT DEU1.DEU_COD_CONTRATO,
                          MAX(DEU1.DEU_FECHA) AS DEU_FECHA
                          FROM PRO_CONTRATOS_DEUDAS AS DEU1
                          INNER JOIN PRO_CONTRATOS AS CON
                              ON DEU1.DEU_COD_CONTRATO=CON.CTT_CODIGO

/usr/local/lib/python3.7/dist-packages/ipykernel_launcher.py:13: SettingWithCopyWarning:
A value is trying to be set on a copy of a slice from a DataFrame

See the caveats in the documentation: pandas.pydata.org/pandas-docs/stable/user_guide/…
  del sys.path[0]

        if i < i2:
            df2["new_index_by"][i2] = df2["new_index_by"][i]
        else:
            df2["new_index_by"][i2] = i

sub new{
	my ($class, $args) = @_;
	my $opc 	= $args->{opc};
	my $hdt 	= $args->{hdt};
	my $host 	= $args->{host};
	my $opcuser = $args->{user};
	my $opcpass = $args->{pass};
	my $user	= 'user';
	my $pass	= 'pass';
	my $timeout = 30;

	my $t = new Net::Telnet (
		  Timeout => $timeout
		, Binmode => 0
		, Errmode => 'die' #\&terror
		, Prompt  => '/>$/' );

	my $fninput = "$path/log/input_$opcuser.log";
	my $fhinput = $t->input_log($fninput);
	$t->open($host);

	# Login OPC
	$t->waitfor('/login: ?$/i');

def my_groupby_regex(df:pd.DataFrame, by=None, regex=None):
    if not by: return df
    df2 = df.copy()

    df2.loc[:,"new_index_by"] = df.index

    for dato,i in zip(df2[by].iloc[:-1], df2.index[:-1]):
        reg = re.compile(regex) if regex else re.compile(generate_regex(dato))

        for other,i2 in zip(df2[by].iloc[i+1:], df2.index[i+1:]):
            if reg.match(other):
                if i < i2:
                    df2.loc[:,"new_index_by"][i2] = df2.loc[:,"new_index_by"][i]
                else: